Abstract
Bulbophyllum sungaiutikense is a new orchid species from Kapuas Hulu, Kalimantan Barat, Indonesia, and a member of the B. sect. Beccariana, allied to B. nabawanense. It differs from the latter in having tetragonal lateral sepals with an elongate triangular apical part, long acuminate petals, different and longer labellum with flattened base and verrucose adaxial surface. Notes on ecology and phenology, discussion of morphologically similar species, amendments to the key to B. sect. Beccariana in Borneo, illustrations and photographs are included here.
References
<p>Ames, O. (1914) Notes on Philippine orchids with descriptions of new species, VI. <em>Philippine Journal of Science </em>8C: 407–442.</p>
<p>Blume, C.L. (1825) <em>Bijdragen tot de flora van Nederlandsch Indië</em>, pt. 7–12. Ter Lands, Jakarta, pp. 284–636. [https://www.biodiversitylibrary.org/page/422236]</p>
<p>Chan, C.L., Lamb, A., Shim, P.S. & Wood, J.J. (1994) <em>Orchids of Borneo: introduction and a selection of species. </em>Bentham-Moxon Trust, Royal Botanic Gardens, Kew, 352 pp.</p>
<p>Chase, M.W., Cameron, K.M., Freudenstein, J.V., Pridgeon, A.M., Salazar, G., van den Berg, C. & Schuiteman, A. (2015) An updated classification of Orchidaceae. <em>Botanical Journal of the Linnean Society</em> 177: 151–174. https://doi.org/10.1111/boj.12234</p>
<p>Comber, J. (1990) <em>Orchids of Java</em>. Bentham Moxon Trust, Royal Botanic Gardens, Kew, 407 pp.</p>
<p>de Vogel, E.F., Vermeulen, J.J. & Schuiteman, A. (2014) Flora Malesiana: orchids of New Guinea. Retrieved from: https://orchids.naturalis.nl/linnaeus_ng/ (accessed 2 April 2022)</p>
<p>Frodin, D.G. (2004) History and concepts of big plant genera. <em>Taxon</em> 53: 753–776.</p>
<p>Hasskarl, J.C. (1844) <em>Catalogus plantarum in Horto Botanico Bogoriensi Cultarum Alter</em>. Ter Lands, Jakarta, 404 pp. [https://www.biodiversitylibrary.org/bibliography/79159]</p>
<p>IUCN. (2012) IUCN <em>Red List categories and criteria, version 3.1, second edition.</em> IUCN, Gland and Cambridge, iv + 32 pp.</p>
<p>IUCN Standards and Petitions Committee. (2022) <em>Guidelines for using the IUCN Red List Categories and Criteria</em>, version 15. Standards and Petitions Committee. Retrieved from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 3 April 2022)</p>
<p>Kraenzlin, F. (1893) <em>Bulbophyllum ericssonii</em>, n. sp. <em>The Gardeners’ Chronicle ser.</em> 3 14: 522.</p>
<p>Pfitzer, E.H.H. (1888–1889) Orchidaceae. <em>In:</em> Engler, A. & Prantl, K. (Eds.) <em>Die Natürlichen Pflanzenfamilien</em> 2 (6): 52–220.</p>
<p>Shaw, J.M.H. (2014) Quarterly supplement to the international register and checklist of orchid hybrids. <em>Orchid Review</em> 122 (Supplement): 1–20.</p>
<p>Shorthouse, D.P. (2010) SimpleMappr, an online tool to produce publication-quality point maps. Retrieved from: http://www.simplemappr.net (accessed 25 Mar 2022)</p>
<p>Thouars, L.M.A. du P. (1822) <em>Histoire particulieÌre des plantes Orchideìes recueillies sur les trois îles australes d’Afrique, de France, de Bourbon et de Madagascar</em>. Published by the author, Paris, vii + 32 pp. + 110 illustr.</p>
<p>Vermeulen, J.J. & Lamb, A. (2008) Fourteen new species of <em>Bulbophyllum</em> from Borneo. <em>Malesian Orchid Journal</em> 1: 41–70.</p>
<p>Vermeulen, J.J. & O’Byrne, P. (2008) Thirty-two new species of <em>Bulbophyllum</em> (Orchidaceae) from Sulawesi. <em>Gardens’ Bulletin Singapore</em> 60: 73–153.</p>
<p>Vermeulen, J.J. & Vogel, A. (2007) <em>Bulbophyllum breimerianum</em> (Orchidaceae), a new species from Borneo. <em>Blumea</em> 52: 1–3. https://doi.org/10.3767/000651907X612319</p>
<p>Vermeulen, J.J., Schuiteman, A. & De Vogel, E.F. (2014) Nomenclatural changes in <em>Bulbophyllum</em> (Orchidaceae; Epidendroideae). <em>Phytotaxa</em> 166: 101–113. http://dx.doi.org/10.11646/phytotaxa.166.2.1</p>
<p>Vermeulen, J.J., O’Byrne, P. & Lamb, A. (2015) <em>Bulbophyllum of Borneo.</em> Natural History Publications (Borneo), Kota Kinabalu, vii + 728 pp.</p>
<p>Blume, C.L. (1825) <em>Bijdragen tot de flora van Nederlandsch Indië</em>, pt. 7–12. Ter Lands, Jakarta, pp. 284–636. [https://www.biodiversitylibrary.org/page/422236]</p>
<p>Chan, C.L., Lamb, A., Shim, P.S. & Wood, J.J. (1994) <em>Orchids of Borneo: introduction and a selection of species. </em>Bentham-Moxon Trust, Royal Botanic Gardens, Kew, 352 pp.</p>
<p>Chase, M.W., Cameron, K.M., Freudenstein, J.V., Pridgeon, A.M., Salazar, G., van den Berg, C. & Schuiteman, A. (2015) An updated classification of Orchidaceae. <em>Botanical Journal of the Linnean Society</em> 177: 151–174. https://doi.org/10.1111/boj.12234</p>
<p>Comber, J. (1990) <em>Orchids of Java</em>. Bentham Moxon Trust, Royal Botanic Gardens, Kew, 407 pp.</p>
<p>de Vogel, E.F., Vermeulen, J.J. & Schuiteman, A. (2014) Flora Malesiana: orchids of New Guinea. Retrieved from: https://orchids.naturalis.nl/linnaeus_ng/ (accessed 2 April 2022)</p>
<p>Frodin, D.G. (2004) History and concepts of big plant genera. <em>Taxon</em> 53: 753–776.</p>
<p>Hasskarl, J.C. (1844) <em>Catalogus plantarum in Horto Botanico Bogoriensi Cultarum Alter</em>. Ter Lands, Jakarta, 404 pp. [https://www.biodiversitylibrary.org/bibliography/79159]</p>
<p>IUCN. (2012) IUCN <em>Red List categories and criteria, version 3.1, second edition.</em> IUCN, Gland and Cambridge, iv + 32 pp.</p>
<p>IUCN Standards and Petitions Committee. (2022) <em>Guidelines for using the IUCN Red List Categories and Criteria</em>, version 15. Standards and Petitions Committee. Retrieved from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 3 April 2022)</p>
<p>Kraenzlin, F. (1893) <em>Bulbophyllum ericssonii</em>, n. sp. <em>The Gardeners’ Chronicle ser.</em> 3 14: 522.</p>
<p>Pfitzer, E.H.H. (1888–1889) Orchidaceae. <em>In:</em> Engler, A. & Prantl, K. (Eds.) <em>Die Natürlichen Pflanzenfamilien</em> 2 (6): 52–220.</p>
<p>Shaw, J.M.H. (2014) Quarterly supplement to the international register and checklist of orchid hybrids. <em>Orchid Review</em> 122 (Supplement): 1–20.</p>
<p>Shorthouse, D.P. (2010) SimpleMappr, an online tool to produce publication-quality point maps. Retrieved from: http://www.simplemappr.net (accessed 25 Mar 2022)</p>
<p>Thouars, L.M.A. du P. (1822) <em>Histoire particulieÌre des plantes Orchideìes recueillies sur les trois îles australes d’Afrique, de France, de Bourbon et de Madagascar</em>. Published by the author, Paris, vii + 32 pp. + 110 illustr.</p>
<p>Vermeulen, J.J. & Lamb, A. (2008) Fourteen new species of <em>Bulbophyllum</em> from Borneo. <em>Malesian Orchid Journal</em> 1: 41–70.</p>
<p>Vermeulen, J.J. & O’Byrne, P. (2008) Thirty-two new species of <em>Bulbophyllum</em> (Orchidaceae) from Sulawesi. <em>Gardens’ Bulletin Singapore</em> 60: 73–153.</p>
<p>Vermeulen, J.J. & Vogel, A. (2007) <em>Bulbophyllum breimerianum</em> (Orchidaceae), a new species from Borneo. <em>Blumea</em> 52: 1–3. https://doi.org/10.3767/000651907X612319</p>
<p>Vermeulen, J.J., Schuiteman, A. & De Vogel, E.F. (2014) Nomenclatural changes in <em>Bulbophyllum</em> (Orchidaceae; Epidendroideae). <em>Phytotaxa</em> 166: 101–113. http://dx.doi.org/10.11646/phytotaxa.166.2.1</p>
<p>Vermeulen, J.J., O’Byrne, P. & Lamb, A. (2015) <em>Bulbophyllum of Borneo.</em> Natural History Publications (Borneo), Kota Kinabalu, vii + 728 pp.</p>